after some more testing I found out that the "fan-problem-fix.patch" is also needed - otherwise the fans dont behave correctly after resume from disk. (skips state 3)
all patches can be found here: http://www.sisk.pl/kernel/patches/2.6.20/ -- Regression: Fan does not come on due to ACPI problems https://launchpad.net/bugs/75398 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs